| Event name: | US-23-014 | |
| Country: | UNITED STATES | |
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Nature of the harmful event: |
Seafood toxins | |
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Event directly affected: |
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| Toxicity detected: | Yes (Approximate range: Maximum domoic acid: 30ppm) | |
| Associated syndrome: | ASP | |
| Unexplained toxicity: | No | |
| Species implicated in toxin transmission (transvector): | ||
| Report the outcome of a monitoring programme: | Yes (Marine Biotoxin Program at the Washington State Department of Health, Office of Environmental and Health and Safety.) | |
| Event occurred before in this location: | Yes | |
| Individuals to contact: | BORCHERT, Jerry , BARRY, Tracie | |
| Location: | Latitude: , Longitude: | |
| General location information: |
Washington State, Coastal beaches and bays, North Coast HAB Area code(s): US-23 |
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| Additional location information: | Domoic acid retained in razor clams from a 2022 Pseudo-nitzschia bloom declined to below action levels by April of 2023, allowing harvest on all beaches prior to the annual seasonal closure. Action levels exceeded Aug-Oct. | |
| Bloom event dates (yyyy/mm/dd): | ||
| Quarantine levels dates (yyyy/mm/dd): | First detection: 2023-08-01, End: 2023-10-01 | |
| Additional date-related information: | Bloom from 2022 extended to 2023-04-01 also. | |
| Causative organism known: | Yes | |
| Causative Species/Genus: |
Pseudo-nitzschia spp.
( cells/L)
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| Co-Ocurring Species/Genus: | ||
| Chlorophyll concentration, if known: | µg/l | |
| Additional bloom information: | ||
| Event-related bibliography: | ||
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| Nutrient information: | ||||||||||||||||||||||||||
| Temperature Range During Event: | Max: °C, Min: °C | |||||||||||||||||||||||||
| Salinity Range During Event: | ||||||||||||||||||||||||||
| Bloom location in the water column: | ||||||||||||||||||||||||||
| Growth: | ||||||||||||||||||||||||||
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| Kit used: No | Type of kit used: | |||||||||||
| Additional information: | ||||||||||||
| Economic losses: | Tribal, recreational, and commercial razor clam harvests were interrupted by domoic acid closures, causing cultural and economic losses to Washington's coastal communities. | |||||||||||
| Management decision: | WADOH closed shellfish harvesting at impacted areas to protect public health. | |||||||||||
| Additional harmful effect information: | ||||||||||||
